Home / 129,367.58-178,468.26-93,500.78

Finding the Fourth Proportional to 129,367.58, 178,468.26 and 93,500.78

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Solution

The fourth proportional to 129,367.58, 178,468.26 and 93,500.78 is: 128,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,367.58 : 178,468.26 = 93,500.78 : x
  2. Step 2: Convert to fraction form
    129,367.58/178,468.26 = 93,500.78/x
  3. Step 3: Cross multiply
    129,367.58x = 178,468.26 × 93,500.78
  4. Step 4: Simplify right side
    129,367.58x = 16,686,921,515.24
  5. Step 5: Solve for x
    x = 16,686,921,515.24/129,367.58
  6. Step 6: Final answer
    x = 128,988.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.